Part of 8,000-yr-old human skull found by kayakers in a US river, pic surfaces

Two kayakers recently discovered a partial human skull in a river in Minnesota, US and experts have now determined that the skull is around 8,000 years old. A forensic investigation revealed that the skull is likely that of a man who lived between 5,500 and 6,000 BC. The skull has a depression indicating cause of the man's death.